/Engine/Plugins/Developer/Concert/ConcertMain/Source/ConcertTransport/Public/IConcertEndpoint.h
Set message ID and sender ID
void SetResponseSendingInfo ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IConcertResponse](API\Plugins\ConcertTransport\IConcertResponse) > & Response, const [FGuid](API\Runtime\Core\Misc\FGuid) & RequestMessageId )